106 



Feeds and Feeding. 



the oil meal by the same amount, the standard would be more 

 nearly reached, although tliere is already a fairly close agreement 

 This shows that the fattening steer weighing 1,000 pounds will 

 be nnrtored to very nearly his fall requirement when receiving 

 the following ration: 10 pounds of corn stover, 8 pounds of oat 

 straw, 12 pounds of com, 4 pounds of oil meal. 



136. Calculating a ration for the dairy cow. — In determining 

 a ration for a dairy cow yielding 22 pounds of milk daily, we 

 choose from the list of feeds m Table C, 8 pounds of red clover 

 hay, 10 pounds of com stover, 3 pounds of oat straw, for rough- 

 age, and 5 pounds each of corn meal and bran for concentrates. 

 The digestible nutrients in these are ascertained as follows: 



Calculations for dry matter and digestible nutrients in trial 

 ration for dairy cow. 



Com stover. 



In 100 In 10 



pounds. pounds. 



59.5^100x10=5.95 



1.7-f-100XlO= .17 



32.4-^100x10=3.24 



.7^100X10= .07 



Red clover hay. 



In 100 In 8 



pounds. pounds. 



84.7-4-100x8=6.776 



6.8-^100x8= .544 



35.8^100X8=2.864 



1.7 ^100X8= .136 



Com meal. 



In 5 

 pounds. 



89.4-^100x5=4.47 

 100X5= .39 

 100X5=3.335 

 100X5= .215 



Arranging these results in tabular form, with the Wolff-Leh- 

 mann standard for comparison, we have the following: 



